Why it's not always appropriate to play audio in HiFi videos

I really made this video, just so I could link to it when people bring up the same old comment that I've seen repeated under a few of my HiFi videos, namely.....Why don't I play music through the device to accurately demonstrate the sound quality'...Hopefully this video might explain that their request is forgetting one tiny thing......SCIENCE.
Incidentally if anyone comments that I could of course use a better Microphone they have missed the point again. The best mic in the world played back through the worst speakers in the world will sound as bad as the speakers...not as good as the mic.
AFFLIATED LINKS/ADVERTISING NOTICE
All links are Affiliated where possible.
When you click on links to various merchants posted here and make a purchase, this can result in me earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network & Amazon.
I am a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to AMAZON Sites (including, but not limited to Amazon US/UK/DE/ES/FR/NL/IT/CAN)